Mars decrypt virus

Yesterday I have been attacted from a virus called " MARS DECRYPT"
From that time I can nt oppen any of my files in my WD MIRROR DISC
They ask me to give them 500 $ in bitcoins in order to give me the key for the dectyption.
Do any one has an idea how I can solve my serious problem
Thank you in advance
Mouratis Alexandros

This also happened to me. All files on my WDMyCloud device were rewritten as .pdf.mars files on Feb 2nd, and a ransom note demanding 300 Bitcoin was added.

Did you pay the bit coin?

Στις Κυρ, 28 Μαρ 2021, 19:44 ο χρήστης pspinrad via WD Community <wd@discoursemail.com> έγραψε:

No-- I can’t pay that.